Incidental Mutation 'R6744:C8b'
ID 532770
Institutional Source Beutler Lab
Gene Symbol C8b
Ensembl Gene ENSMUSG00000029656
Gene Name complement component 8, beta polypeptide
Synonyms 4930439B20Rik
MMRRC Submission 044861-MU
Accession Numbers
Essential gene? Non essential (E-score: 0.000) question?
Stock # R6744 (G1)
Quality Score 225.009
Status Validated
Chromosome 4
Chromosomal Location 104623514-104661745 bp(+) (GRCm39)
Type of Mutation missense
DNA Base Change (assembly) C to T at 104631543 bp (GRCm39)
Zygosity Heterozygous
Amino Acid Change Arginine to Tryptophan at position 53 (R53W)
Ref Sequence ENSEMBL: ENSMUSP00000066940 (fasta)
Gene Model predicted gene model for transcript(s): [ENSMUST00000031663] [ENSMUST00000065072]
AlphaFold Q8BH35
Predicted Effect probably damaging
Transcript: ENSMUST00000031663
AA Change: R53W

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000031663
Gene: ENSMUSG00000029656
AA Change: R53W

DomainStartEndE-ValueType
signal peptide 1 31 N/A INTRINSIC
TSP1 66 116 3.17e-7 SMART
LDLa 120 156 1.78e-10 SMART
MACPF 290 497 3.6e-65 SMART
Blast:EGF 501 534 9e-12 BLAST
TSP1 547 584 1.17e-1 SMART
Predicted Effect probably damaging
Transcript: ENSMUST00000065072
AA Change: R53W

PolyPhen 2 Score 1.000 (Sensitivity: 0.00; Specificity: 1.00)
SMART Domains Protein: ENSMUSP00000066940
Gene: ENSMUSG00000029656
AA Change: R53W

DomainStartEndE-ValueType
signal peptide 1 31 N/A INTRINSIC
TSP1 66 116 3.17e-7 SMART
LDLa 120 156 1.78e-10 SMART
MACPF 224 431 3.6e-65 SMART
Blast:EGF 435 468 1e-11 BLAST
TSP1 481 518 1.17e-1 SMART
Meta Mutation Damage Score 0.1991 question?
Coding Region Coverage
  • 1x: 99.9%
  • 3x: 99.7%
  • 10x: 98.7%
  • 20x: 96.6%
Validation Efficiency 98% (47/48)
MGI Phenotype FUNCTION: This gene encodes the beta subunit of complement component C8 that participates in the assembly of the complement membrane attack complex. The encoded preproprotein undergoes proteolytic processing to generate the beta subunit, which associates with the alpha and gamma subunits to form a trimeric complement component, C8. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar proteolytic processing. This gene is located adjacent to the gene encoding the alpha subunit. [provided by RefSeq, Oct 2015]
PHENOTYPE: In a controlled microbial environment ("clean") laboratory, mice homozygous for an inactivating mutation of this gene are viable and fertile and exhibit no apparent abonormal phenotype. [provided by MGI curators]
Allele List at MGI
Other mutations in this stock
Total: 48 list
GeneRefVarChr/LocMutationPredicted EffectZygosity
Ahi1 T A 10: 20,841,466 (GRCm39) L251H probably damaging Het
Alk A T 17: 72,910,077 (GRCm39) S210T probably benign Het
Arap2 A G 5: 62,906,281 (GRCm39) F246S probably damaging Het
Atad5 T A 11: 80,024,858 (GRCm39) N1749K probably benign Het
C87436 T A 6: 86,423,046 (GRCm39) S207T probably damaging Het
Catsperg2 A G 7: 29,409,244 (GRCm39) V619A probably benign Het
Cdc73 G A 1: 143,577,887 (GRCm39) probably benign Het
Cdh4 C A 2: 179,489,180 (GRCm39) H297Q possibly damaging Het
Col3a1 G T 1: 45,377,782 (GRCm39) probably benign Het
Crybg2 A G 4: 133,816,207 (GRCm39) N1328S probably damaging Het
Ctnnb1 T A 9: 120,782,025 (GRCm39) V346E probably damaging Het
Ctns C T 11: 73,076,111 (GRCm39) G308E probably damaging Het
Cxxc4 AGGCGGCGGCGGCGGCGGCGGCGGC AGGCGGCGGCGGCGGCGGCGGCGGCGGC 3: 133,945,891 (GRCm39) probably benign Het
Dnah6 A G 6: 73,014,532 (GRCm39) I3685T probably damaging Het
Dock6 T C 9: 21,742,770 (GRCm39) H775R probably damaging Het
Eef1ece2 A T 16: 20,449,116 (GRCm39) K165N probably damaging Het
Fbxl3 A T 14: 103,320,730 (GRCm39) V239D probably damaging Het
Gh T A 11: 106,192,230 (GRCm39) K55* probably null Het
Havcr2 T G 11: 46,345,887 (GRCm39) probably null Het
Kcnq2 T A 2: 180,727,099 (GRCm39) H576L possibly damaging Het
Kifap3 A G 1: 163,676,239 (GRCm39) N398S probably benign Het
Lama5 G A 2: 179,833,455 (GRCm39) P1519L probably damaging Het
Mblac1 A G 5: 138,192,682 (GRCm39) E8G possibly damaging Het
Mtor C T 4: 148,543,112 (GRCm39) T290I probably benign Het
Nceh1 T C 3: 27,295,938 (GRCm39) Y400H probably damaging Het
Nek9 A G 12: 85,376,703 (GRCm39) V226A probably benign Het
Or10a3 T C 7: 108,480,037 (GRCm39) T259A probably damaging Het
Or10al3 T A 17: 38,012,336 (GRCm39) Y258* probably null Het
Or2d4 A G 7: 106,543,741 (GRCm39) S156P probably damaging Het
Otud4 C A 8: 80,400,407 (GRCm39) Y1039* probably null Het
Pax4 T C 6: 28,442,396 (GRCm39) H331R probably benign Het
Piezo2 A T 18: 63,165,960 (GRCm39) Y2090* probably null Het
Ppp1r12a T A 10: 108,066,395 (GRCm39) H195Q probably damaging Het
Ppp6r2 A G 15: 89,140,864 (GRCm39) probably null Het
Prodh A G 16: 17,897,064 (GRCm39) V23A probably benign Het
Psg20 G A 7: 18,408,505 (GRCm39) T405I probably damaging Het
Ptprf T C 4: 118,093,562 (GRCm39) D360G probably benign Het
Qrfprl T A 6: 65,418,324 (GRCm39) M164K possibly damaging Het
Rad18 A T 6: 112,652,745 (GRCm39) M284K probably damaging Het
Rgs17 T C 10: 5,792,567 (GRCm39) K60E possibly damaging Het
Sec31a G T 5: 100,540,358 (GRCm39) Q39K possibly damaging Het
Slc22a22 G T 15: 57,117,668 (GRCm39) T291K possibly damaging Het
Sult2a6 C T 7: 13,956,470 (GRCm39) E264K probably damaging Het
Syne2 C T 12: 76,121,221 (GRCm39) R5896C probably damaging Het
Tctn1 A T 5: 122,402,209 (GRCm39) V75D probably damaging Het
Tmem214 A G 5: 31,031,372 (GRCm39) K409E probably damaging Het
Vcan T C 13: 89,853,301 (GRCm39) Y553C probably damaging Het
Vmn1r49 C T 6: 90,049,184 (GRCm39) V273I probably benign Het
Other mutations in C8b
AlleleSourceChrCoordTypePredicted EffectPPH Score
IGL00659:C8b APN 4 104,658,531 (GRCm39) splice site probably benign
IGL01145:C8b APN 4 104,637,777 (GRCm39) missense probably benign 0.25
IGL01768:C8b APN 4 104,644,151 (GRCm39) missense probably benign 0.00
IGL02347:C8b APN 4 104,644,151 (GRCm39) missense probably benign 0.00
IGL02488:C8b APN 4 104,661,278 (GRCm39) missense probably benign
IGL02957:C8b APN 4 104,623,652 (GRCm39) missense probably benign
IGL02979:C8b APN 4 104,631,585 (GRCm39) missense probably damaging 0.99
IGL02995:C8b APN 4 104,658,525 (GRCm39) splice site probably benign
IGL03294:C8b APN 4 104,637,888 (GRCm39) missense probably benign 0.06
R0568:C8b UTSW 4 104,650,577 (GRCm39) missense probably benign 0.39
R1015:C8b UTSW 4 104,644,157 (GRCm39) missense probably benign 0.19
R1191:C8b UTSW 4 104,650,520 (GRCm39) missense probably damaging 1.00
R1401:C8b UTSW 4 104,641,679 (GRCm39) missense possibly damaging 0.72
R3824:C8b UTSW 4 104,640,206 (GRCm39) missense probably benign 0.42
R4611:C8b UTSW 4 104,647,841 (GRCm39) missense probably damaging 0.98
R4756:C8b UTSW 4 104,644,083 (GRCm39) missense probably benign
R4845:C8b UTSW 4 104,649,009 (GRCm39) missense possibly damaging 0.87
R5355:C8b UTSW 4 104,637,860 (GRCm39) missense probably benign 0.01
R5436:C8b UTSW 4 104,657,546 (GRCm39) nonsense probably null
R5561:C8b UTSW 4 104,641,645 (GRCm39) missense possibly damaging 0.89
R5967:C8b UTSW 4 104,650,530 (GRCm39) missense possibly damaging 0.79
R6899:C8b UTSW 4 104,644,071 (GRCm39) missense probably benign 0.02
R6977:C8b UTSW 4 104,644,193 (GRCm39) missense possibly damaging 0.82
R7088:C8b UTSW 4 104,650,540 (GRCm39) missense probably benign 0.12
R7224:C8b UTSW 4 104,637,795 (GRCm39) missense probably damaging 1.00
R7278:C8b UTSW 4 104,637,824 (GRCm39) missense probably damaging 1.00
R8058:C8b UTSW 4 104,647,811 (GRCm39) missense probably damaging 0.96
R8437:C8b UTSW 4 104,644,040 (GRCm39) missense probably damaging 1.00
R8821:C8b UTSW 4 104,647,874 (GRCm39) missense probably damaging 1.00
R8831:C8b UTSW 4 104,647,874 (GRCm39) missense probably damaging 1.00
R9139:C8b UTSW 4 104,641,631 (GRCm39) missense probably damaging 1.00
R9237:C8b UTSW 4 104,650,481 (GRCm39) missense probably benign 0.00
R9294:C8b UTSW 4 104,644,192 (GRCm39) missense probably benign 0.04
R9789:C8b UTSW 4 104,640,191 (GRCm39) missense probably benign 0.00
Predicted Primers PCR Primer
(F):5'- AAACAACTTCCTTGTGCTCCTG -3'
(R):5'- TACTGTCTGAAAGCACAGAGACAG -3'

Sequencing Primer
(F):5'- GCTCTGATCTACATTAATTTGATGGG -3'
(R):5'- ACAGTCTGCATCTTAAAGGGC -3'
Posted On 2018-08-29